package com.imooc.web.controller;

import com.imooc.dto.FileInfo;
import org.apache.commons.io.IOUtils;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;

/**
 * @author Zqm
 * @Title: FileController
 * @ProjectName imooc-security
 * @date 2018/12/18
 */
@RestController
@RequestMapping("/file")
public class FileController {

    private String folder="D:\\develope\\workSpace\\SpringSecurity\\imooc-security-demo\\src\\main\\java\\com\\imooc\\web\\controller";

    @PostMapping
    public FileInfo upload(MultipartFile file) throws IOException {
        System.out.println(file.getName());
        System.out.println(file.getOriginalFilename());
        System.out.println(file.getSize());
        File localFile=new File(folder,System.currentTimeMillis()+".txt");
        file.transferTo(localFile);
        return new FileInfo(localFile.getAbsolutePath());
    }


    @GetMapping("/{id}")
    public void downLoad(HttpServletRequest request,
                         HttpServletResponse response,
                         @PathVariable String id) throws IOException {
        try (InputStream inputStream = new FileInputStream(new File(folder, id + ".txt"));
             OutputStream outputStream = response.getOutputStream();) {

            response.setContentType("application/x-download");
            response.addHeader("Content-Disposition", "attachment;filename=test.txt");

            IOUtils.copy(inputStream, outputStream);
            outputStream.flush();
        }
    }

}
